Cheapest one-way flights from Boston to San Juan in April from 57€

Best time to book flights for Boston (BOS) to San Juan (SJU) flights at AirHint

AirHint found the following cheapest one-way flights from Boston (BOS) to San Juan (SJU) in April 2025 (see full year).

One-Way flights

28 Apr Frontier Airlines
03 Apr Frontier Airlines
07 Apr Frontier Airlines
10 Apr Frontier Airlines
15 Apr Frontier Airlines
25 Apr Frontier Airlines
13 Apr Frontier Airlines
27 Apr Frontier Airlines
05 Apr Spirit Airlines
06 Apr Spirit Airlines

Also check the deals for return flights from Boston to San Juan in April.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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